Comparative Evaluation of Aligners with Built-in Vibration Features on Rate of Tooth Movement

Clear aligner therapy has become a preferred alternative to traditional fixed orthodontics due to its aesthetics and comfort. However, the slower rate of tooth movement remains a limitation. Incorporating built-in vibration technology within aligners is a recent innovation proposed to accelerate tooth movement by enhancing cellular activity and bone remodeling.

A prospective comparative study was conducted involving 40 orthodontic patients aged 18-30 years requiring anterior teeth retraction. Patients were randomly assigned into two groups: Group A (n = 20) received conventional clear aligners, and Group B (n = 20) received aligners with built-in vibration features (frequency 30 Hz, 5 minutes/day usage). All participants underwent standardized treatment planning, and tooth movement was evaluated using digital models at baseline, 4, 8, and 12 weeks.

The mean rate of tooth movement over 12 weeks was significantly higher in Group B (0.45 ± 0.08 mm/week) compared to Group A (0.29 ± 0.06 mm/week), with a P < 0.01. Group B also exhibited reduced overall treatment time by approximately 23%. No significant adverse effects or discomfort were reported in either group.

Aligners integrated with vibration features demonstrated a statistically significant increase in the rate of tooth movement compared to conventional aligners.